DIAMOND MULTIMEDIA SYSTEMS, INC.

SUPRAEXPRESS 288

Modem Type

Data (synchronous/asynchronous)/Fax

Maximum Data Rate

28.8Kbps

Maximum Fax Rate

14.4Kbps

Data Bus

External

Fax Class

Class I

Data Modulation Protocol

Bell 103A/212A

ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34

Rockwell V.FC

Fax Modulation Protocol

ITU-T V.17, V.27ter, V.29

Error Correction/Compression

MNP5, V.42, V.42bis

CONNECTIONS

Purpose

Location

Purpose

Location

Line out

CN1

RS-232/422

CN3

Line in

CN2

DC power

CN4

DIAGNOSTIC LED(S)

LED

Color

Status

Condition

OH

Red

On

Modem is off-hook

OH

Red

Off

Modem is on-hook

RD

Red

Blinking

Modem is receiving data

RD

Red

Off

Modem is not receiving data

SD

Red

Blinking

Modem is transmitting data

SD

Red

Off

Modem is not transmitting data

PWR

Red

On

Power is on

PWR

Red

Off

Power is off

 

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, ‘comma’, A/

A, B, C, D, E, F, H, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z

&A, &B, &C, &D, &F, &G, &J, &K, &L, &M, &P, &Q, &R, &S, &T, &V, &W, &X, &Y, &Z

Extended AT Commands

\A, \B, \C, \E, \G, \J, \K, \L, \O, \Q, \T, \U, \V, \W, \X, \Y, \Z

%A, %L, %Q, %TT

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S16, S18, S24, S25, S26, S29,

S38, S39, S46, S48, S82, S86, S90, S91, S92, S95, S99, S108, S109, S110, 201

Special Commands

*H, "H, "N, "O,-J, -K, -Q, )M, @M, :E, #CID, +MS?

Note: See MHI Help File for full command documentation.

Proprietary AT Command Set

AUTO FALL FORWARD/FALLBACK

Type:

Configuration

Format:

AT [cmds] %Gn [cmds]

Example:

AT %G1 &W <CR>

Description:

Selects auto fall forward/fallback.

Command

Function

%G1

Fall forward/fallback disabled.

» %G0

Fall forward/fallback enabled.

COMPRESSION AND ERROR CORRECTION

Type:

Configuration

Format:

AT %Cn

Example:

AT %C0 *Y1<CR>

Description:

Selects data compression and error correction.

Command

Function

%C0

Data compression disabled.

%C1

Data compression enabled.

%C2

Data correction enabled.

» %C3

Data compression and correction enabled.

CONNECT MODE

Type:

Configuration

Format:

AT [cmds] \Nn [cmds]

Example:

AT \N1 DT555-1212<CR>

Description:

Sets connect mode.

Command

Function

\N0

Normal mode enabled.

\N1

Direct mode enabled.

\N2

Reliable mode enabled.

» \N3

Auto-reliable mode enabled.

\N4

LAPM/MNP mode enabled.

MODULATION SELECTION

Type:

Configuration

Format:

AT [cmds] +MS=xx,y,zzz,aaa [cmds]

Example:

AT +MS11,1,300,28800 &W<CR>

Description:

Sets options for active protocol. The transfer rates specified by z and a must be valid for the protocol selected.

Command

Function

x=0

V.21

x=1

V.22

x=2

V.22bis

x=3

V.23

x=9

V.32

x=10

V.32bis

» x=11

V.34

x=64

Bell 103

x=69

Bell 212A

x=74

V.FC

y=0

Automode disabled.

y=1

Auto-detect highest speed enabled.

z, a=300

Set minimum or maximum transfer rate at 300bps, respectively.

z, a=1200

Set minimum or maximum transfer rate at 1200bps, respectively.

z, a=2400

Set minimum or maximum transfer rate at 2400bps, respectively.

z, a=4800

Set minimum or maximum transfer rate at 4800bps, respectively.

z, a=7200

Set minimum or maximum transfer rate at 7200bps, respectively.

z, a=9600

Set minimum or maximum transfer rate at 9600bps, respectively.

z, a=12000

Set minimum or maximum transfer rate at 12000bps, respectively.

z, a=14400

Set minimum or maximum transfer rate at 14400bps, respectively.

z, a=16800

Set minimum or maximum transfer rate at 16800bps, respectively.

z, a=19200

Set minimum or maximum transfer rate at 19200bps, respectively.

z, a=24000

Set minimum or maximum transfer rate at 24000bps, respectively.

z, a=26400

Set minimum or maximum transfer rate at 26400bps, respectively.

z, a=28800

Set minimum or maximum transfer rate at 28800bps, respectively.

REPORT INFORMATION

Type:

Immediate

Format:

AT [cmds] In [cmds]

Example:

AT I1 O<CR>

Description:

Displays modem properties.

Command

Function

I0

Reports product code.

I1

Reports ROM checksum result.

I2

Reports ROM checksum OK or ERROR

I3

Reports firmware version.

I4

Reports current command settings.

I5

Reports copyright information.

I7

Reports configuration.

I10

Reports modem’s optional features

RETRAIN

Type:

Configuration

Format:

AT [cmds] %E1 [cmds]

Example:

AT %E1<CR>

Description:

Requests a retrain.

Command

Function

%E0

Disabled

» %E1

Enabled

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